5 results found for water

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00:05:00

Wave Power

by Jonathan Hare
Wave Power
for 11-14 and upwards,
Lectures | 11-14 and upwards | 10 years ago | 1677 views
Rating:

The UK coast is constantly being bombarded by sea waves.  There is a massive amount of power available from these waves.  Jonathan describes three different ways of generating electrical power from water waves.

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00:03:00

Copper – The Miracle Metal

by Bill Hammack
Copper – The Miracle Metal
for 11-14 and upwards,
Lectures | 11-14 and upwards | 13 years ago | 1972 views
Rating:

Bill cuts a copper pipe from his ceilng to show the five properties of copper that make it the most important metal for our world: From clean water to electronics.

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00:03:00

Coffee Maker: Pumping water with no moving parts

by Bill Hammack
Coffee Maker: Pumping water with no moving parts
for 11-14 and upwards,
Lectures | 11-14 and upwards | 13 years ago | 1816 views
Rating:

To engineer an object means to make choices. Bill illustrates how the choice of having a single heating element made an engineer find a creative way to pump water with no moving parts.

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00:04:00

Seawater Battery

by Jonathan Hare
Seawater Battery
for 11-14 and upwards,
Lectures | 11-14 and upwards | 15 years ago | 3178 views
Rating:

When two different metals are placed in a salt solution (an electrolyte) the chemistry produces a voltage. This is called a cell. By wiring up a number of these cells we can make a battery and use it to power electrical circuits.

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00:06:00

Nature Solves Environmental Pollution

by Hamid Pouran
Nature Solves Environmental Pollution
for 11-14 and upwards,
Lectures | 11-14 and upwards | 15 years ago | 2337 views
Rating:

How bacteria can be used to solve a variety of environmental problems.

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